Soon-jeong, 18-year-old, living with her mother, is full of dissatisfaction with her home and school in particular with her mother. She dreams of immigrating to Australia as soon as she graduates from high school. So she has been working part-time at a convenience store early on, but the reason Soon-jeong’s plans are disrupted is none other than because of the new homeroom teacher, Hee-joo. Soon-jeong wants to get out of the self-study class at night for working her part-time job, but Hee-joo turns it down. Tension continues to rise between the two.